Thanks. I was just wondering if anyone else caught the 10.5" PSA upper on sale like I did and had any problems or praise. May take it to Fred's today and see how it performsSpecifically their upper? None. I do have a Anderson receiver with a classic firearms 10.5" M4 profile barrel on my AR pistol and it shoots pretty nice. With a 4MOA red dot I am getting 2.5" groups at 50yds off bags and with BUIS I can get that down to about 2". If I swapped to a finer front post and something like some 64gr gold dots or 69gr SMK I might be able to shrink that Some more.
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